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Centaurée bleuet (Centaurea cyanus)

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Centaurée bleuet (Centaurea cyanus)
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Prix
Prix unitaire
2,25 € *
Prix de base 0,01 €/ graine
EUR
incl. 7% TVA
Livraison
4 €
Détails
Disponibilité
en stock
N° d'article
1327
Quantité de graines:
200 Pcs.
Nom botanique:
C. arvensis, C. vulgaris, Centaurea cyanus, Cyanus segetum
Groupe:
Graines
Mots-clé

Description

The wild cornflower was once a frequent visitor to cultivated and arable land all over Europe, but through the use of pesticides and seed cleaning its populations have diminished drastically, and in its wild form it is among the endangered species
in many countries. In agriculture, it is still regarded as a field weed, since it shares cultivation areas with cereals and oilseed rape.

The flowers and buds of the cornflower are edible and can be used in salads or cooked. Particularly interesting is their content of anthocyanins, a blue dye group, which owes its name to the flower itself (Centaurea cyanus). This makes it possible to obtain blue food coloring from the flowers, which can be used to color sweets and pastries. The color obtained is also suitable as colorant for fabric, but it is not washable.

As a medicinal plant it is not very important, although its wild form - in contrast to the ornamental varieties - contains some active constituents. Historically, it has been used for the treatment and prevention of ocular disorders and was regarded as a magic medicinal plant.

The flower had special symbolic significance both in ancient Rome, where it was assigned to the harvest goddess as a hair ornament. In addition, it has been used by various political parties as identification marks, including the illegal German national movement in pre-fascist Austria, but also as a party symbol of the liberal party of Sweden and the national flower of Estonia.

Seed, content: approx. 200 cornflower seeds

Growing instructions

Undemanding annual plant that grows up to one meter high. Direct sowing from April or already in autumn, planting distance about 30cm. Do not cover seeds with soil completely, they need light to germinate. The plant grows very well on nutrient-rich, permeable soils with lime content in a sunny location, but is also satisfied with half shade. Water very little and do not fertilize. It does not take waterlogging well at all.

When the flowers are harvested in time, the cornflower will bloom more than once within a year.

En savoir plus: description et entretien

Famille de plantes:
Asteraceae
Hauteur de la plante env.:
40–100 cm
Couleur des fleurs:
Bleu
Période de floraison :
Août, Juillet, Juin, Mai
Emplacement:
Lieu semi–ombragé, Soleil
Besoins en eau:
Arrosage en périodes sèches
Cycle de vie :
Anuelle, Bisannuelle

Semis et culture

Préculture intérieur :
Février, Mars
Temps de semis à l'extérieur:
Août, Avril, Mars, Octobre, Septembre
Profondeur de semis:
A besoin de lumière pour germer
Température optimale de germination :
12 – 18 °C
Temps de germination (jours):
10 – 20
Distance de plantation env.:
30 x 30 cm

Culture associée

Autres noms

Noms allemands :
Kornblume, Zyane
Noms anglais:
Bachelor's button, Bluebottle, Boutonniere flower, Cornflower, Cyani, Hurtsickle
Noms français:
Centaurée bleuet
Noms espagnols:
Aciano, Flor celeste
Noms italiens:
Fiordaliso

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